• Sung Jin-Woo's Knight Killer Dagger foam replica
  • Sung Jin-Woo's Knight Killer Dagger foam cosplay prop
  • Sung Jin-Woo's Knight Killer Dagger foam replica handle detail
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Knight Killer Dagger - Solo Leveling (High-Density Foam)

Knight Killer Dagger - Solo Leveling (High-Density Foam)

$74.99 USD
$74.99 USD
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This foam version of Sung Jin-Woo's Knight Killer Dagger gives you the Solo Leveling look without the weight of metal. The 26 inch fan-made high-density foam replica has a black and red blade with the white and red handle Jin-Woo carries after the Job Change quest, built on a solid inner core so it holds its shape. Convention friendly and easy to carry, it is made for Sung Jin-Woo cosplay, photoshoots, and younger fans.

The Knight Killer is the dagger that marks Sung Jin-Woo's first real leap in Solo Leveling. He receives it after defeating Igris the Bloodred in the Job Change quest, the trial that makes him a Necromancer and sets him on the path to becoming the Shadow Monarch. With its black blade, red edge, and bright orange and white grip, it instantly became one of the most recognizable weapons in the series.

Jin-Woo dual wields the Knight Killer with Kasaka's Venom Fang through the Red Gate and Demon Castle arcs, and it appears in many of the manhwa's best known panels. This foam replica keeps the shape, colors, and proportions of the metal version while staying light enough to carry through a full convention day, making it the go to choice for Sung Jin-Woo cosplayers who need a prop that passes stricter event rules.

  • Overall Length: 26 inches
  • Blade Length: 17.5 inches
  • Handle Length: 8.5 inches
  • Material: High-density foam with solid inner core
  • Colors: Black and red blade, white and red handle
  • Edge: None
  • Foam replica of Sung Jin-Woo's Knight Killer dagger
  • Black and red blade with white and red handle
  • High-density foam over a solid inner core for durability
  • Lightweight and convention friendly
  • Safe for cosplay, photoshoots, and display
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High-Density Foam
Foam replica weapons
3 to 7 Business Days
Estimated USA delivery
Tracking Provided
On every order
Fan-Made for Fans
Anime & game replicas
Safe for Every Fan

Safe for Every Fan

Our foam replicas are built for fans who want to display, cosplay, or collect without compromise. Lightweight, durable, and screen-accurate; perfect for any setting.

Convention & Event Ready

Convention & Event Ready

Designed to pass event safety checks, our foam weapons are ideal for cosplay meetups, conventions, and photoshoots. Look the part without leaving your blade at the door.

Screen-Accurate Detail

Screen-Accurate Detail

Every foam replica is modeled from the source material: anime, games, and film. We capture the color, shape, and character of each weapon so your cosplay is always on point.

Frequently asked questions

Is this the Knight Killer dagger from Solo Leveling in foam?

Yes. It is a high-density foam version of the Knight Killer that Sung Jin-Woo receives after the Job Change quest, with the same black and red blade and white and red handle as our metal replica.

How does the foam version compare to the metal Knight Killer?

The foam version is longer at 26 inches, far lighter, and allowed at more events. The metal version has real weight and a stand and suits display. Many fans buy the foam for conventions and the metal for the shelf.

Is it safe for conventions?

Foam props are among the most widely accepted cosplay weapons. Rules still vary, so confirm your convention's prop policy before attending.

Will it bend or lose its shape?

The foam is built over a solid inner core, so it stays straight for posing and carrying. Store it flat and away from heat and it will keep its shape.

Can children use this prop?

The all foam build makes it one of the safest Solo Leveling props for younger fans. Adult supervision is still recommended.

How do I clean and store it?

Wipe with a slightly damp cloth and let it air dry. Keep it out of direct sun and away from heavy objects so the paint and foam stay intact.

Does it come with a stand or sheath?

No stand or sheath is included. The foam dagger displays fine on a shelf or hook and fits most short sword stands.

When does Jin-Woo get the Knight Killer?

He gets it as a reward for defeating Igris in the Job Change quest and uses it as one of his two main daggers through the Red Gate and Demon Castle arcs.

What other foam Solo Leveling daggers do you carry?

Rasaka's Venom Fang, Baruka's Dagger, Antares' Fangs, the Demon King's Daggers, and Kamish's Wrath are all available in foam in the Solo Leveling collection.

Can I pair it with a foam Kasaka's Venom Fang?

Kasaka's Venom Fang is currently metal only, but the foam Rasaka's Venom Fang works as a dual wield partner for a lightweight Sung Jin-Woo cosplay loadout.

Knight Killer Dagger - Solo Leveling (High-Density Foam) $74.99